Legal claims defining the scope of protection, as filed with the USPTO.
1. A digital television having a display, comprising: a receiving part configured to receive at least one of digital image data and analog image data; a data processing part configured to execute bit map conversion and format-conversion for text data to be displayed on the display; a memory configured to store the bit map data obtained according to the bit map conversion in the data processing part and image data inputted from an arbitrary receiving part; an image outputting part configured to read image data from the memory; and a display processing part configured to mix image data read from the image outputting part and the bit map data converted in format by the data processing part.
2. The digital television as defined in claim 1 , wherein the data processing part comprises a bit map converter configured to determine whether the text data is the bit map data and that converts the text data into the bit map data, based upon the determined result, and a bit map compressor configured to compress the bit map data by using compression coding.
3. The digital television as defined in claim 2 , wherein the data processing part further comprises a bit map decompressor configured to read the compressed bit map data from the memory to thereby restore the read data to its original bit map data, and a format converter configured to convert the format of the decompressed bit map data to correspond with display resolution.
4. The digital television as defined in claim 3 , wherein the format converter adjusts the resolution by integrating real number times to either a horizontal direction or a vertical direction of decompressed bit map data.
5. The digital television as defined in claim 2 , wherein the bit map converter converts the text data into the bit map data, if it is determined that the text data is not the bit map data.
6. The digital television as defined in claim 2 , wherein the bit map converter bypasses the text data, if it is determined that the text data is the bit map data.
7. The digital television as defined in claim 2 , wherein the predetermined compression coding is a run-length compression coding.
8. The digital television as defined in claim 1 , wherein the text data is at least one among HTML data, DHTML data, XML data, SGML data and bit map data.
9. The digital television as defined in claim 1 , wherein the memory stores first bit map data or second bit map data.
10. The digital television as defined in claim 1 , wherein the conversion of the text data is carried out by using either first bit map data or second bit map data.
11. The digital television as defined in claim 1 , wherein the display displays different resolution images.
12. A digital television having a data processing device and a display, comprising: a bit map converter configured to determine whether text data to be displayed on the display is bit map data and to convert the text data into bit map data; a bit map compressor configured to compress the bit map data by using compression coding; a bit map decompressor configured to read the compressed bit map data from a memory for restoring read data to its original bit map data; and a format converter configured to convert the format of the decompressed bit map data to correspond with display resolution.
13. The digital television as defined in claim 12 , wherein the text data is at least one among HTML data, DHTML data, XML data, SGML data and bit map data.
14. The digital television as defined in claim 12 , wherein the bit map converter converts the text data into bit map data if it is determined that the text data is not bit map data.
15. The digital television as defined in claim 12 , wherein the bit map converter bypasses the text data if it is determined that the text data is bit map data.
16. The digital television as defined in claim 12 , wherein the predetermined compression coding is a run-length compression coding.
17. The digital television as defined in claim 12 , wherein the conversion of the text data is carried out by using either first bit map data or second bit map data previously stored in the memory.
18. The digital television as defined in claim 12 , wherein the format converter adjusts the resolution by integrating real number times by either the horizontal direction or the vertical directions of the decompressed bit map data.
19. The digital television as defined in claim 12 , wherein the display displays different resolution images.
20. A digital television having a data processing device and a display, comprising: a bit map converter configured to determine whether text data to be displayed on the display is bit map data and configured to convert the text data into bit map data; a format converter configured to convert the format of the decompressed bit map data to correspond with display resolution; a bit map compressor configured to compress the bit map data by using compression coding; and a bit map decompressor configured to read the compressed bit map data from a memory for restoring the read data back to its original bit map data.
21. The digital television as defined in claim 20 , wherein the conversion of the text data is carried out by using either first bit map data or second bit map data previously stored in the memory.
22. The digital television as defined in claim 20 , wherein the format converter adjusts the resolution by integrating real number times to either the horizontal direction or the vertical direction of the decompressed bit map data.
23. The digital television as defined in claim 20 , wherein the display displays different resolution images.
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November 23, 2010
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